Sonardyne 8142-000-01, Руководство пользователя

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User Manual: Generic Section
Section: Introduction 0-4
Revision: 00 Page 7 of 21
5 UNITS OF MEASUREMENT
All dimensions, weights, pressure, torque values, etc. in the User Manual are normally given in metric units.
But, when required they will be followed by imperial units in parentheses.
6 VERIFICATION
All technical data, descriptive, operational and procedural information given in this User Manual has been
approved by Sonardyne International Limited.
7 GLOSSARY OF TERMS
NOTE: The terms that follow are general and are not specific to this User Manual.
NOTE: The table that follows contains User Operator Terms, Sonardyne Systems, Signal Processing and
Communication Terms and General Terms.
User Operator Terms
Term Definition
Acoustic Transceiver An instrument that emits acoustic signals and receive acoustic
signals and extract information from them. Transceivers can
measure the time it takes a signal to travel from its transducer
to a transponder and return. Some can encode and send data
in a message and extract digital data from a message
(Acoustic Telemetry). Used on a surface vessel or to mark a
point on the seabed, or fixed to a mobile for tracking or
positioning.
Acoustic Transponder An instrument that emits an acoustic signal when it detects an
interrogating acoustic signal.
Acoustic Responder An instrument that emits an acoustic signal in response to an
electrical signal carried to it by cable
Acoustic Synchronous/ Precision Pinger An instrument that emits signals regularly without an
interrogating signal. A SYNCHRONOUS Pinger can be
synchronised to an external master signal.
A PRECISION Pinger has an accurate internal time standard
Acoustic Transducer A device that converts electrical signals into acoustic signals
and vice-versa